The LLC_XMIT_BUFFER structure represents a pool buffer. You pass a pointer to this structure in the LLC_BUFFER_FREE_PARMS, LLC_BUFFER_GET_PARMS, or LLC_TRANSMIT_PARMS structure.
typedef struct _LLC_XMIT_BUFFER LLC_XMIT_BUFFER, *PLLC_XMIT_BUFFER;
struct _LLC_XMIT_BUFFER {
    PLLC_XMIT_BUFFER pNext; 
    USHORT usReserved1; 
    USHORT cbBuffer; 
    USHORT usReserved2; 
    USHORT cbUserData; 
    UCHAR auchData[]; 
};
 
  Windows NT: Requires version 3.1 or later.
  Windows: Requires Windows 95 or later.
  Windows CE: Unsupported.
  Header: Declared in dlcapi.h.
The DLC Interface Overview, DLC Structures, AcsLan, LLC_BUFFER_FREE_PARMS, LLC_BUFFER_GET_PARMS, LLC_TRANSMIT_PARMS